US3764145A

US3764145A - Space travel game using magnets to simulate the pull of gravity

Info

Publication number: US3764145A
Application number: US00298853A
Authority: US
Inventors: F Schrafft
Original assignee: Lee Raymond Organization Inc
Current assignee: Lee Raymond Organization Inc
Priority date: 1972-10-19
Filing date: 1972-10-19
Publication date: 1973-10-09
Anticipated expiration: 1990-10-09

Abstract

A game comprising a first flat horizontal rectangular nonmagnetic sheet; first and second ring magnets overlying the first sheet and disposed adjacent opposite ends; first and second disc magnets disposed in the centers of the corresponding first and second ring magnets; a second horizontal non-magnetic sheet overlying the magnets; at least one magnetic body lying movably on the top of the second sheet; a third horizontal non-magnetic sheet disposed above the magnetic body; and at least one bar magnet slidable along the third sheet.

Description

Schrafft Oct. 9, 1973 [54] SPACE TRAVEL GAME USING MAGNETS 1,988,071 1/1935 Bryn 273/1 M UX o SIMULATE THE PULL 0F GRAVITY 2,975,551 3/196] Oberinger 273/] M X 2,995,372 8/1961 Hines 46/240 X [75] Inventor: Frederick E- Schrafft, O y e, 3,214,171 10/1965 Luchsinger 46/240 x Conn. 3,658,338 4/1972 Wheelock 273/134 AE 73 Assi nee: The Ra mond Lee Or anization 1 g g York Primary Examiner-Richard C. Pinkham Assistant Examiner-- Paul E. Shapiro Filed: 1972 Attorney-Richard S. Shreve, Jr. [21] Appl. No.: 298,853

[57] ABSTRACT 52 us. 01. 273/131 AD, 35/19 R, 46/240, A g comprising a first flat horizontal rectangular 273/1 M, 273/131 BB, 273/134 AE, 273/134 non-magnetic sheet; first and second ring magnets AA overlying the first sheet and disposed adjacent oppo- 51 1111. c1. A63f 3/00 sire ends; s and second disc magnets disposed in the 53 Field f Search 273 1 M, 134 R, 134 A, centers of the corresponding first and second ring 2715 1311 5 134 AA, 135 R, 135 A, 135 magnets; a second horizontal non-magnetic sheet D 135 B 131 R 131 A 131 AD 131 overlying the magnets; at least one magnetic body 33; 4 /240; 35 19 R 19 A lying movably on the top of the second sheet; a third horizontal non-magnetic sheet disposed above the 5 References Ci d magnetic body; and at least one bar magnet slidable UNITED STATES PATENTS alng thrd 1,225,787 5/1917 Diehl 273/1 M UX 4 Claims, 7 Drawing Figures I 1/ III In ZQ Z- SPACE TRAVEL GAME USING MAGNETS TO SIMULATE THE PULL OF GRAVITY SUMMARY OF THE INVENTION My invention is directed toward a game for teaching the principles of space travel including such concepts as gravity, earth pull, moon pull and the like.

l employ a pair of spaced disc magnets on a flat surface. Each magnetic has a magnetic field which represents the gravitational pull of planets and moons such as the Earth and the Moon. Each disc magnet is surrounded by a spaced ring magnet having a field which defines an orbit around the simulated planet or moon. A second non-magnetic surface overlies the magnets and supports at leastone movable magnetic body. A third like surface is disposed above the body. At least one bar magnet is slidable on the third surface. The body or bodies can then be manipulated by interacting magnetic fields to illustrate the various concepts in the framework of games as described below.

BRIEF DESCRIPTION OF THE DRAWINGS DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS A hollow elongated container has two spaced

disc magnets

12 and 14 disposed adjacent each end and lying flat on corresponding horizontal bottom

plastic plates

20 and 22. Magnets 1 2 and 14 are disposed at the centers of

ring magnets

16 and 18. Each platewith its corresponding disc' and ring magnets can be removed and. replaced onto support plastic sheet 24 to permit use of magnets of like geometry but different field strengths.

A flat transparent plastic sheet 26 overlies the magnets. One or more magnetic balls 28 are disposed rotatably on top of sheet 26. A second parallel sheet 30 overlies sheet 26 and is spaced above balls 28. Each ball can be controlled by a separate bar magnet 32 slidable along the top of sheet 30.

Each disc can represent by its magnetic pull the gravity of planet or moon. For

example discs

12 and 14 can represent Earth and Moon respectively. Each ring magnet establishes by its pullthe orbital path around the particular planet or moon. Thus

magnets

16 and 18 represent orbits around Earth and Moon. Substitution of magnets can enable other planets or moons to be represented.

E'ach ball 28 can represent a spaceship and each magnet 34 can represent a mission controlcrew. A game then known as Voyage tothe Planets can be played. Object of the game is to get the SPACESI-IIP onto the launching pad, out into ORBIT of the Earth, then into space travel for the trip to the Moon, into ORBIT of the Moon and the landing on the Moon. The

return trip is into moon ORBIT, space travel, Earth ORBIT and back to the landing on Earth.

To start, push a ball thru'the hole marked A, and place the magnet on the plastic sheet directly over the ball. The player will feel the Mission Control Crew take over control of the Spaceship. Control the direction you wish your Spaceship to go by holding the magnet between your thumb and forefinger, and leading the ball where you want it to go.

Once a player has control of the ball, try to get it thru the Earths magnetic ORBITAL field, to the DIRECT center of the Earth, where it will be held by the GRAV- ITY of Earth. When this position is reached, a player should try to get the ball into an ORBIT of the Earth, where it will again be held by the magnetic Zone of the Earth. He makes as many orbits of the Earth as needed 'to get the ball into free spacefor the trip to the moon. Once into space travel, he leads his ship to the Moon for-the ORBIT around the Moon. Again make as many ORBITS as are needed to break out of the Moons LESSER magnetic ORBITAL field for the landing on the CENTER of the Moon, where it will be held by Moon's lesser GRAVITY.

The return trip is in reverse order for the trip back to Earth and the landing onthe CENTER of Earth. The.

player making the complete trip in the least time is the winner. Should a player lose control of his SHIP (ball) at any time, it means he is LOST in outer space and must start all over again.

While it will seem impossible at first, the trip can be made without mishap by careful control of the ball at all times. Due to the lesser magnetic PULL of the magnets used in the Moon field (one/sixth those of Earth) most players tend to lose control for this reason.

FIG 3 shows the various positions described above identified as 1 through 7 respectively. By substituting bar magnets A, B, C and D for balls 28 and using a spinner control dial 34 another game called Journeyto the Moon. The magnets A, B, C and D are colored red, white, blue and yellow respectively.

Object of the game is for each Mission Control Crew to try and get their Spacecraft'from Earth to the Moon and back. First spacecraft to reach Splashdown (position twenty) being the winnerQ The mission Control Dial has 24 spaces, being numbered from one to 20 to correspond to twenty positions on the playing field, four spaces numbered one to give each crew an equal chance to reach the Launch pad (position one), and the final space lettered GO." The G0 space is the All Systems Go space which means that all SPACECRAFT move forward one position whenever the Red pointer stops on that space.

To start the game all players spinthe pointer. High man is first, etc.

Number one player puts his Mission Control Crew on space No. 1 as shown on Control Dial. He then spins the pointer trying to get it to stop on his number or the GO space. Should he succeed he then moves his Spacecraft to position one on the playing field and his control crew to space two on the control dial. He then spins In the event a Spacecraft reaches a position already occupied by one Spacecraft, the last craft reaching that position must always go on the bottom. The lowest craft must always carry those above it on all moves made by it. The top craft is always free to leave alone should the play allow it, which is often the case. The Control Crews on the control dial must also follow this rule at all times. This holds true whenever there is two or more spacecraft on one position. To show how this rule applies let us say that it is RED'S turn to spin and he gets his number or the GO, he is free to leave as he is on top. Suppose however it was WHITEs turn to spin and he got his number or G0, he would have to take RED along with him until RED leaves when the play allows. This holds true for BLUE and YELLOW also as well as the Control Crews shown in diagram C. In other words, what ever sequence the spacecraft are stacked" on a position the control crews must be stacked also. This is the most important rule to remember as it is vital to the playing of this version of the game.

While I have described my invention with particular reference to the drawings,such is not to be considered as limiting its actual scope.

Having thus described this invention, what is assered at least one bar magnet slidable along the third sheet.

2. The game of claim 1 wherein said body is a magnet.

3. The game of claim 1 wherein the body is a magnetic sphere.

4. The game of claim 1 wherein each ring magnetdisc magnet pair rests on a non-magnetic base which can be removed from the first sheet and replaced by another pair of like geometry but different magnetic strengths.

Claims

1. A game comprising: a first flat horizontal rectangular non-magnetic sheet; first and second ring magnets overlying the first sheet and disposed adjacent opposite ends; first and second disc magnets disposed in the centers of the corresponding first and second ring magnets; a second horizontal non-magnetic sheet overlying the magnets; at least one magnetic body lying movably on top of the second sheet; a third horizontal non-magnetic sheet disposed above the magnetic body; and at least one bar magnet slidable along the third sheet.

2. The game of claim 1 wherein said body is a magnet.

3. The game of claim 1 wherein the body is a magnetic sphere.

4. The game of claim 1 wherein each ring magnet-disc magnet pair rests on a non-magnetic base which can be removed from the first sheet and replaced by another pair of like geometry but different magnetic strengths.